简易集成电路型负序分量过滤器

Simple integrated circuit based negative sequence component filter

针对许多负序分量过滤器不能同时反映负序分量大小和相位的问题,提出一种由一个集成运算放大器以及几个阻容元件组成的新颖集成电路型负序分量过滤器。通过电路仿真证明了其可行性。该过滤器结构简单,成本低,可方便地组成精确反映序分量的大小和相位的负序电流过滤器、负序电压过滤器、正序电流过滤器和正序电压过滤器。

In view of the question what many negative sequences component filter cannot simultaneously reflect the size and the phase of the negative sequence component, one kind of novel integrated circuit based on negative sequence component filter is proposed. It is composed of an integrated operational amplifier, several resistances and several capacitances. The feasibility is proven through the electric circuit simulation. The structure is simple, and the cost is low. It is able to conveniently compose negative sequence electric current filter, the negative sequence voltage filter, the positive sequence electric current filter and the positive sequence voltage filter, which reflect the size and the phase of sequence component precisely.